Verbal Intelligibility Analyzer for Audio Announcement Systems

• US 20130262103A1
• Filed: 03/28/2012
• Published: 10/03/2013
• Est. Priority Date: 03/28/2012
• Status: Active Grant

• Current Assignee: Tyco Fire & Security GmbH (Johnson Controls International plc)
• Original Assignee: Simplexgrinnell LP (Johnson Controls International plc)
• Inventors: Reiswig, Rodger
• Granted Patent: US 9,026,439 B2
• Time in Patent Office: Days
• US Class Current: 704/235
• CPC Class Codes: G10L 15/26 Speech to text systems G10L15/08 takes precedence
• CPC Class Codes: G10L 25/60 for measuring the quality of voice signals
• CPC Class Codes: H04R 2227/009 Signal processing in [PA] systems to enhance the speech intelligibility
• CPC Class Codes: H04R 27/00 Public address systems circuits for preventing acoustic reaction H04R3/02; circuits for distributing signals to loudspeakers H04R3/12; monitoring or testing arrangements for public address systems H04R29/007; amplifiers H03F
• CPC Class Codes: H04R 29/007 for public address systems public address systems per se H04R27/00

Abstract

A device and method are disclosed for testing the intelligibility of audio announcement systems. The device may include a microphone, a translation engine, a processor, a memory associated with the processor, and a display. The microphone of the analyzer may be coupled to the translation engine, which in-turn may be coupled to the processor, which is in-turn may be coupled to the memory and the display. The translation engine can convert audio speech input from the microphone into data output. The processor can receive the data output and can apply a scoring algorithm thereto. The algorithm can compare the received data against data that is stored in the memory of the analyzer and calculates the accuracy of the received data. The algorithm may translate the calculated accuracy into a standardized STI intelligibility score that is then presented on the display of the analyzer.

Claims

1. An intelligibility testing device comprising:

an audio input device;

a translation engine coupled to the audio input device and configured to receive audio data from the audio input device and to convert the received audio data to output data;

a processor coupled to the translation engine and configured to receive the output data from the translation engine and to compare the received output data to stored test data to generate scoring data; and

a storage medium coupled to the processor for storing the test data.

2. The intelligibility testing device of claim 1, further comprising a location detector for detecting and recording a location of the testing device and associating the recorded location with scoring data generated by the processor.

3. The intelligibility testing device of claim 1, further comprising a remotely-located audio playing device that is controlled through manipulation of an operator interface that is integral with the testing device.

4. The intelligibility testing device of claim 3, wherein the operator interface allows an operator to specify a particular area into which an audio message is played.

5. The intelligibility testing device of claim 1, further comprising an output component adapted to upload data from the testing device to another computing device.

6. The intelligibility testing device of claim 1, further comprising a scoring algorithm configured to compare the output data to the test data stored in the storage medium and to generate an accuracy score.

7. The intelligibility testing device of claim 6, wherein the scoring algorithm is configured to convert the accuracy score to an STI intelligibility score.

8. The intelligibility testing device of claim 1, further comprising a display coupled to the processer for visually presenting the scoring data.

9. The intelligibility testing device of claim 1, wherein the translation engine is a speech-to-text engine and the output data is text data.

10. A method of testing intelligibility, comprising:

receiving audio data;

converting the received audio data to output data;

comparing the output data to stored test data; and

generating an intelligibility score representative of an intelligibility characteristic of the received audio data.

11. The method of claim 10, further comprising recording a location where the audio data was received and associating the recorded location with the intelligibility score.

12. The method of claim 10, further comprising projecting an audio message through an audio announcement system.

13. The method of claim 12, further comprising injecting the audio message into the audio announcement system by playing the message through a speaker of an audio playing device positioned in close proximity to a microphone of the audio announcement system.

14. The method of claim 12, further comprising injecting the audio message into the audio announcement system by speaking the message into a microphone of the audio announcement system.

15. The method of claim 12, further comprising injecting the audio message into the audio announcement system by executing an audio file containing the message on an audio playing device that is connected directly to the audio announcement system.

16. The method of claim 12, wherein the step of projecting comprises projecting the audio message into a designated space.

17. The method of claim 10, further comprising storing data generated by said at least one scoring algorithm in a non-volatile storage medium.

18. The method of claim 10, further comprising uploading data generated by said at least one scoring algorithm to another computing device.

19. The method of claim 10, wherein the step of comparing the output data to stored test data comprises comparing the output data to test data that is representative of a predetermined audio test message.

20. The method of claim 19, further comprising generating an accuracy score representative of the comparison.

21. The method of claim 20, further comprising converting the accuracy score to an STI intelligibility score.

22. The method of claim 21, further comprising visually displaying the STI intelligibility score.